eal: use intrinsic function

Signed-off-by: Intel

diff --git a/lib/librte_eal/common/include/rte_common.h b/lib/librte_eal/common/include/rte_common.h
index 764d1cf..0ad06ec 100644 (file)
--- a/lib/librte_eal/common/include/rte_common.h
+++ b/lib/librte_eal/common/include/rte_common.h
@@ -274,10 +274,7 @@ rte_pause (void)
 static inline uint32_t
 rte_bsf32(uint32_t v)
 {
-       asm("bsf %1,%0"
-               : "=r" (v)
-               : "rm" (v));
-       return (v);
+       return (__builtin_ctz(v));
 }
 
 #ifndef offsetof